I used to have a silk dressing gown an uncle bought in Japan and when I came downstairs in it, my dad used to call me Davinia. There was never embarrassment about that kind of thing. My sister used to dress me up a lot. She thought I was a little doll.

I've done panel shows, which I enjoy, and on those you're recording half-an-hour of TV and sometimes they film for two hours. But with 'Britain's Got Talent,' you're on camera for eight hours, with a large theatre audience watching - and in between you're being filmed for ITV2 as you eat your lunch.

We sit in a room for months trying to think of funny things.

I've noticed that once you leave London you do kind of become a bit more famous. People in London are a bit too cool for school. It's not so unusual to see someone from London in the street. But outside of London people are a bit more excited to see you and come out and support you.

I still enjoy my life, and I feel like I've achieved enough things that if I never did anything again, I'd feel confident that I'd still have made my mark in some way. But maybe the self-loathing bit is the element that makes you strive for more. Makes you strive to be better.

Social satire has been around since people have been around.

I love telling stories. I love the intimacy between the writer and reader. When you write sketches it's over in two minutes. When you write a book the characters have to have a bit of emotional depth.